000 00301nam a2200133Ia 4500
008 161001s2004 xx 000 0 und d
082 _a577.6 C45F
100 _aClass,G
245 _aFreshwater ecology
260 _bBlackwell
_c2004
300 _a221p
650 _aFreshwater ecology
942 _2ddc
_cC
999 _c628
_d628